Anterior Pelvic Tilt Angle Calculator

Vertical Height Difference (ASIS higher than PSIS)

Measure the vertical height difference between the Anterior Superior Iliac Spine (ASIS) and the Posterior Superior Iliac Spine (PSIS) in the same unit. Enter a positive number when ASIS is higher than PSIS (typical in anterior pelvic tilt).

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Horizontal Distance between ASIS and PSIS

Measure the horizontal (front-to-back) distance between the ASIS and PSIS on the same side. Use the same unit as the vertical measurement.

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Unit of Measurement

Select the unit used for both measurements above. Both values must use the same unit.

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